Italicizing non-literal syntax?

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How about, when showing syntax like:

node.append(...nodes or strings) – append nodes or strings at the end of node,
node.prepend(...nodes or strings) – insert nodes or strings into the beginning of node,

that "node" (in this case), or whatever syntax is not literal, that is, that stands for some general type of thing, be put in italics, i.e., in this case, to have instead:

_node_.append(...nodes or strings) – append nodes or strings at the end of node,
_node_.prepend(...nodes or strings) – insert nodes or strings into the beginning of node,

(From: [https://javascript.info/modifying-document](url))

I think that would make the meaning of the syntax clearer. Also, this is what MDN does in their Syntax descriptions, e.g.:

_element_.appendChild(aChild);
[https://developer.mozilla.org/en-US/docs/Web/API/Node/appendChild](url)

This would also address some of my earlier concerns with the use of "str", "array", "obj", etc. from a couple months ago.

Inizia esaminando gli esempi di sintassi nell’articolo collegato modifying-document e confrontali con l’esempio MDN appendChild. Determina l’ambito di applicazione del corsivo alla sintassi non letterale in tutto il tutorial, quindi documenta la convenzione e aggiorna coerentemente gli esempi pertinenti.

Scritto dal modello di indicizzazione a partire dal testo della issue.